Caster.



lE. H.-`COSTLOW. cAsTER.

APPLICATION FlLED' FEB. 8. 1915.

. vwantoz EHCOSTLOVV insonne;

a citizen of the United States, residing at Altoona, in `theconnty o" Blair' and State of Pennsylvanial have n ted certain new' land useful improvements in Casters, of

which the following is a specification, reference being had to the accompanying draivings.' A

This invention relates to new and useful improvements in casters and'more particularly to what are known in the art as bali bearing casters, the main object of the present invention being the Vprovision of a ball bearing caster which is :mounted within a` suitable socket and retained in position .by removable plates and is provided with means whereby the same may be readily secured to the lower end of a `furniture leg.

.Another object of the present invention is the provision of a ball bearing caster of the above oharacterwhich vvill possess advantages in points of eiiiciency and dura bility, is inexpensive to manufacture and, atv the same time is simple in construction and operation.

With the above and other objects in View, the invention consists in the novel features of construction, combination and arrendement of parts as will he hereinafter .1e-`

ferred to and more particularly pointed out in the specification and claims.

In the accompanying drawings 'forming a part oit this application, Figure l isa side elevation of a caster constructed in ace,

tended portion 3 of the socket 2 is a ball,

l#which forms a bearing for the caster ball 5. From this it will be apparent that the caster ball 5 will rotate upon the ball Ll which is arranged Within the extension 3. Mounted upon the base plate 1 and provided with a. central opening to receive the caster ball 5, is a bearing plate (i and mount ed upon this bearing plate is a retaining ring 7, the inner edge of which is arranged position b l @tion of? I j hetn'eef 1 the inner et 'c 8. These bearing i y ezine of coiffer plate 9 w'hi is mount upon the plate "i" -dsecnre i heldin pof ii i e transrerilse screw bolts f bolts 1G 'Wiii be suiiic i ng to extend up into the lon/'cr enr; oi the 'whereby io rigidly secure the cas ne same. The inner marginal edge of the plate 9 is beveled, at il to correspond to e periphery of the bearing bell i and torse. a rem taining; means for the same.

From this it will be appa-rent that have provided. a simple and durable ball bearings; caster which can befeasily and quioiriy se` cured to the ioiver end of the bed post and. provide a removable support for the bed post, whereby the bed can bc readily moved about at will. v Y v ln assembling the various parte of my improved caster, the ball d is'rst placed fithin the extension 3 of the socket 2 and the ball 5 is then placed Within the socket and adapted to reet upon the bail d. The

bearing plate is then arran'died in position` 'i will be readily opp-arent the. l have pro .j

vided a simple and durabie dfvice which can be quickly and readily secured to the lower ends of the bed post and which will form an anti-friction support for 'the bed, whereby the bed can be .readily moved about with comparatively little efort, The dcvice, as a Whole, of cornparniii-"eiy few parts, can be quickly and readiiy sembled and at the saine time can be mann factured and placed upon the marl-rot s comparatively low cost.

While i have sion/n and described the preferred form of my invention, itvvill. be obvious that various changes in the de ails of construction and in the proportions may be resorted to for successfully carrying my invention into practice, Without l.what I 4 mg plate mounted upon the base plate, a

retaunng ring upon the bearing plate, a. cover plate arranged over the ring and prolvided with a central opening through which a portion of the ball projects, and bearing balls disposed between the bearing plate Aand the cover plate and the first mentioned ball and the retaining ring, as and for the purpose set forth.

thus described this inventiorn' 2. A caster including a body formed with a socket, and further provided with a continuation at the central portion of the socket, an anti-friction ball arranged Within the continuation, a second anti-friction ball disposed within. the socket and bearing upon the first ball, said body being provided With a thickened rim and having a race-Way formed therein, bearin balls disposed Within said race-Way, an ing plate engaging over the second antifriction ball and removably attached to the thickened edge of the body to retain the bearing balls in position within the race- Way, as and for the purpose set forth.

In testimony whereof I hereunto aiiix my signature in the presence of two Witnesses.

EBEN H. COSTLOW.

Witnesses:

H. PRICE GRAFFINB, l A. J. Fnmm.

a retain-v 

